A multistream heat exchanger model with enthalpy feasibility

Kyungjae Tak, Hweeung Kwon, Jaedeuk Park, Jae Hyun Cho, Il Moon

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A temperature feasibility constraint is an important part of multistream heat exchanger (MSHE) modeling. However, temperature feasibility of an MSHE model makes a numerical issue when a physical property package is used to obtain highly accurate temperature-enthalpy relationships in equation-oriented modeling environment. To resolve the issue, this study proposes a new MSHE model with enthalpy feasibility using the fact that enthalpy is a monotonically increasing function of temperature. A natural gas liquefaction process, called a single mixed refrigeration process, is optimized using the proposed MSHE model under an equation-oriented modeling environment with a physical property package as a case study.

Original languageEnglish
Pages (from-to)81-88
Number of pages8
JournalComputers and Chemical Engineering
Publication statusPublished - 2018 Jul 12

Bibliographical note

Funding Information:
This research was supported by a grant from the LNG Plant R&D Center funded by the Ministry of Land, Infrastructure and Transport ( MOLIT ) of the Korean government and also respectfully supported by Engineering Development Research Center (EDRC) funded by the Ministry of Trade, Industry & Energy ( MOTIE ).

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Computer Science Applications

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